Methotrexate With or Without Cyclophosphamide in Treating Patients With Lymphocytic Leukemia
Eastern Cooperative Oncology Group
Eastern Cooperative Oncology Group
Eastern Cooperative Oncology Group
Eastern Cooperative Oncology Group
South Plains Oncology Consortium
Polish Lymphoma Research Group
ETOP IBCSG Partners Foundation
SWOG Cancer Research Network
SWOG Cancer Research Network
European Organisation for Research and Treatment of Cancer - EORTC